Answers

Subtract 15/63 from 98/20

1^st number: 4 18/20, 2^nd number: 15/63

98/20 - 15/63 is 979/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 63 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 20 × 63 = 1260,
   98/20 = 98 × 63/20 × 63 = 6174/1260
3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
   15/63 = 15 × 20/63 × 20 = 300/1260
4. Subtract the two like fractions:
   6174/1260 - 300/1260 = 6174 - 300/1260 = 5874/1260
5. After reducing the fraction, the answer is 979/210
6. In mixed form: 4139/210

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